Home / 261,357.41-391,989.27-69,233.11

Finding the Fourth Proportional to 261,357.41, 391,989.27 and 69,233.11

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Solution

The fourth proportional to 261,357.41, 391,989.27 and 69,233.11 is: 103,837.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,357.41 : 391,989.27 = 69,233.11 : x
  2. Step 2: Convert to fraction form
    261,357.41/391,989.27 = 69,233.11/x
  3. Step 3: Cross multiply
    261,357.41x = 391,989.27 × 69,233.11
  4. Step 4: Simplify right side
    261,357.41x = 27,138,636,248.73
  5. Step 5: Solve for x
    x = 27,138,636,248.73/261,357.41
  6. Step 6: Final answer
    x = 103,837.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.